PROBLEM TO BE SOLVED: To provide a balloon catheter for duodenal papilla extension in which a balloon can be disposed at an appropriate position of a papilla part and the position of the balloon is hard to deviate from the papilla part during the papilla extension.SOLUTION: A baloon catheter for duodenal papilla extension includes: a catheter tube (20) and a baloon (30) having a distal end fixation part (31) and a proximal end fixation part (32) fixed to the catheter tube and an expansion part (34) that is interposed between the distal end fixation part and the proximal end fixation part and that can expand due to fluid supplied through the catheter tube. The expansion part includes: a distal end expansion part (36) connected to the distal end fixation part a proximal end expansion part (37) connected to the proximal end fixation part and a marker part (38) that is interposed between the distal end expansion part and the proximal end expansion part and the color of which is different from that of the distal end expansion part and the proximal end expansion part.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2016,JPO&INPIT【課題】バルーンを乳頭部の適切な位置に配置させ易く、乳頭拡張中にバルーンの位置が乳頭部からずれにくい十二指腸乳頭拡張用バルーンカテーテルを提供する。【解決手段】 カテーテルチューブ(20)と、前記カテーテルチューブに固定された遠位端固定部(31)及び近位端固定部(32)と、前記遠位端固定部及び前記近位端固定部に挟まれており前記カテーテルチューブを介して供給される流体により膨張可能な膨張部(34)と、を有するバルーン(30)と、を有し、前記膨張部は、前記遠位端固定部に接続する遠位端膨張部(36)と、前記近位端固定部に接続する近位端膨張部(37)と、前記遠位端膨張部と前記近位端膨張部の間に挟まれており前記遠位端膨張部及び前記近位端膨張部と色が異なるマーカー部(38)と、を有することを特徴とする十二指腸乳頭拡張用バルーンカテーテル。【選択図】図1
